mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
72 lines
2.6 KiB
ArmAsm
72 lines
2.6 KiB
ArmAsm
.file "fma.s"
|
|
|
|
|
|
// Copyright (c) 2001 - 2003, Intel Corporation
|
|
// All rights reserved.
|
|
//
|
|
// Contributed 2001 by the Intel Numerics Group, Intel Corporation
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// * Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
//
|
|
// * The name of Intel Corporation may not be used to endorse or promote
|
|
// products derived from this software without specific prior written
|
|
// permission.
|
|
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
|
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
|
|
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Intel Corporation is the author of this code, and requests that all
|
|
// problem reports or change requests be submitted to it directly at
|
|
// http://www.intel.com/software/products/opensource/libraries/num.htm.
|
|
//
|
|
// History
|
|
//==============================================================
|
|
// 06/07/01 Initial version
|
|
// 05/20/02 Cleaned up namespace and sf0 syntax
|
|
// 02/10/03 Reordered header: .section, .global, .proc, .align
|
|
//
|
|
// API
|
|
//==============================================================
|
|
// double fma (double x, double y, double z)
|
|
//
|
|
// Overview of operation
|
|
//==============================================================
|
|
// returns x * y + z with one rounding error
|
|
|
|
// All the special cases are handled by the fma instruction itself
|
|
|
|
// floating-point registers used: 3
|
|
// f8, input x, output
|
|
// f9, input y
|
|
// f10, input z
|
|
|
|
.section .text
|
|
GLOBAL_LIBM_ENTRY(fma)
|
|
|
|
{ .mfb
|
|
nop.m 999
|
|
fma.d.s0 f8 = f8, f9, f10 // Result = x * y + z
|
|
br.ret.sptk b0
|
|
}
|
|
;;
|
|
|
|
GLOBAL_LIBM_END(fma)
|